Built by Mitsubishi Electric, it boasts a 59-foot-diameter, turtle-shell-shape antenna dubbed "Gamela, " after the Godzilla-slaying tortoise.

FORBES: Magazine Article

Roll the dough into two circles that are 2-3 inches wider in diameter than your pie shell or plate.

NPR: 'The Story of Apple Pie'

Data was stored on rewritable magneto-optical disks 2.5in (64mm) in diameter housed for protection in a square plastic shell.

BBC: Sony to make last MiniDisc stereo system in March

The firing tube is supported in a tripod-like design and fires roughly a 3-pound shell, some 14 inches in length and a bit larger than 2 inches in diameter.

NPR: Mortar Explosion In Nev. Kills 7 NC Unit Marines